热致液晶共聚酯原位复合材料相容性的研究  

STUDY ON THE COMPATIBILITY OF INSITU COMPOSITE OF POLYCARBONATE AND THERMOTROPIC LIQUID CRYSTALLINE COPOLYESTER

作　　者：杜新宇[1] 张世海[1] 刘德山[1] 周其庠[1] 

机构地区：[1]清华大学化工系高分子研究所

出　　处：《复合材料学报》1999年第3期34-39,共6页Acta Materiae Compositae Sinica

摘　　要：通过加入液晶聚酯酰胺和聚碳酸酯的多嵌段共聚物，可以有效地降低基体聚碳酸酯的玻璃化转变温度，提高热致液晶高分子ＰＥＴ／６０ＰＨＢ与聚碳酸酯原位复合材料的相容性。随嵌段共聚物含量的增加，共混物拉伸强度有所提高，拉伸模量提高了１５％，同时，冲击强度也得到了增长。通过扫描电镜（ＳＥＭ）的观察发现，嵌段共聚物的加入改进了共混体系中两相间界面粘合。The compatibility of the insitu composite of Polycarbonate(PC) and liquid crystalline copolyester can be improved by adding the multiblock copolymer prepared from PC and LC copolyesteramide oligomer. The mechanical properties of blends are increased when increasing the adding amount of block copolymer. Through the observation of SEM it can be found that the deformation of LC particles can be improved by the block copolymer and the interfacial adhesive becomes better.

关 键 词：液晶高分子 原位复合材料 嵌段共聚物 相容性 

分 类 号：TB33[一般工业技术—材料科学与工程] O753.2[理学—晶体学]